This most recent lockloss 1240331170 is similar to a couple of others we have had in the last few weeks when it is windy. This kind of lockloss is one of our motivations for working on the length/angle decoupling that Jenne has been modeling and we made some measurements for yesterday afternoon. 48767

You can see on the web lockloss tool that we saturated the PUM of ETMX with low frequency drive (around 0.1 Hz). 

Looking at the attached screenshot, you can see that in the last seconds of the lock there is a ring up in DARM at around 6.1 Hz, about 8 seconds before the lockloss there was a similar signal in DARM at around 5 Hz that rang down.  It seems like these faster oscillations also happen in CHARD, and they are happening when the PUM is saturating. 

Since this is a pattern that we have seen a couple of times (winds elevated, ETMX saturated with pringle drive), this would be a good type of lockloss to try to identify automatically.